Mill-roll stand



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Patented Jan. 22, 1924.

UNITED STATES PATENT OFFICE.

JAMES A. CAMERON AND GUSTAF BIRGE BIRCH, 0F BROOKLYN, NEW YORK,

ASSIGNORS TO CAMERON MACHINE A CORPORATION OF NEW YORK.

COMPANY, OF BROOKLYN, NEW YORK,

MILL-ROLL S'IQND.

Application filed August 25, 1920. Serial No. 405,996.

To all whom it may concern:

Be it known that we, JAMES A. CAMERON and GUSTAF B. BIRCH, citizens of the United States, and residents of the borough of Brooklyn, in the city of New York county of Kings, and State of New York, ave invented certain new and useful Improvements in Mill-Roll Stands, of which the following is a specification.

This invention relates generally to mill or web roll stands such as are employed in connection with printing, slitting or other machines that act on a web of flexible material, and has for its main object and feature the provision of combined means whereby the web roll may not only be brought into registry with the rolls of the machine with which it is associated, but the web roll shaft may also be made parallel with the rolls of said machine.

In the accom anying drawings, the invention is disclosed in several concrete and preferred forms in which:

Fig. 1 is a view in elevation, largely diagrammatic, of a slitting and rewinding machine showing a mill roll stand, embodyin the invention, associated therewith.

Fig. 2 is a top plan view of the mill roll stand and mill roll shown in Fig. 1, with parts broken away, the stand being shown turned 90 from the position of Fig. 1.

Fig. 3 is an enlarged vertical sectional view of the mill roll stand, one of the'swivel bearings and one end of the mill roll, taken on the plane of line 3-3 of Fig. 1.

Fig. 4 is in eil'ect a continuation of Fig. 3 showing the other end of the mill roll and the other bearing, or it may be considered a view on the plane of line 4-4 of Fig. 5.

Fig. 5 is a view in elevation partly broken away looking in the direction of arrow 5 in Fig. 11 is a view looking in the direction of arrow 11 of 10, showing one end of Elie mill roll stan with some parts in sec- Fig. 12 is a vertical sectional view on the plane of line 12-12 of Fig. 11.-

Fi 13 is an end view of controlling means for t e brake looking in the direction of arrow 13 of Fig. 14.

0 Fig. 14 is a to I plan view of the controlling means for t e brake looking in the direction of arrow 1% of Fig. 10.

15 indicates a machine such as the well known Cameron slitting and rewinding machine for acting on a web of paperor other flexible material coming from a removable Web roll 16.- The slitting and rewindin machine has a pluralit of rolls, as indicate through which the we passes and the problem is to provide means whereb when a web or mill rollis placed in position in the stand it may be brought into registrywith the rolls of the slitting machine and whereby the mill roll shaft may be brought into parallelism with the rolls of said slitting machine.

17 is-a mill roll shaft sup orting the web of paper removably, slidab y and rotatably mounted in open swivel bearings 18 and 19 and having a flexible driving connection such as universal coupling 20, with control shaft 21. 22 is a stationary bearing provided with guideways 23 for the reception of slide 24 carrying control shaft 21 and provided in its upper surface with rack 25 with which pinion 26 engages. This pinion is mounted on actuating shaft 27 extending transversely of control shaft 21 and mounted at one end in bushin 28 and at its other end in a suitable bearing 29. 30 is a stop limiting the rotation of shaft 27 in either direction. It will be understood that by turning handle 31 on shaft 27, sliding member 24 and with it control shaft 21 will be moved longitudinally of the axis of said shaft, and, owing to universal joint 20, mill roll shaft 17 will likewise be moved lengthwise and, that this may be effected whether or not mill roll shaft 17 is axially coincident with, orangularl displaced with'reference to, the control shal t.

Slide 24 has a downwardly extending portion provided with a bushin 32 su porting a countershaft 33 carrying rake 34..

Countershaft 33 and control shaft. 21 are provided with sprocket wheels 35 and 36 connected by a sprocket chain 37. A gear shield 38 covers these transmission means. 39 denotes a brake band encircling the drum and having at its ends brake shoes 40'with which engages a stem 41 havin oppositely threaded portions 42 and 43. term 41 extends outward adjacent handle 31 where it has a bearing 44 which is either swivele'd or has a certain amount of play. Carried by slide24 is a support 45 for stem 41 and said stem is provided with collars 46, one on either side of support45. Rotation of stem 41 will draw the brake shoes 40 together or move them apart, support 45 acting as an abutment for collars 46. It will be understood that movement of slide 24 in either direction will carry with it not merely control shaft 21 but also the brake drum and the driving connections between the drum and the control shaft, and also that the brake band may be manipulated in any position which sliding member-24 assumes. It

may be remarked here that the function of the brake is to retard rotation of the control and mill roll shafts when it is desired to stop the feedin of paper, since otherwise momentum o? the mill roll would continue to unwind the paper for a considerable period.

Swivel bearing 18 is preferably constructed as follows: 47 is a standard to the upper end of which is secured intermediate member 48 by means of bolts 49. Carried by intermediate member 48 is a pivot 50 on which is mounted bearing bracket 51. This bracket is provided with slots 52 through which pass set screws 53 in threaded engagement with intermediate member 48 to limit swivel action of bracket 51.

Swivel bearing 19 is constructed exactly like 18 except that bolts 49 pass through straight slots 54 in intermediate member 48, and that said intermediate member is provided with an arm 55 in which a handle 56 is rotatably mounted, said handle having a threaded stem 57 in engagement with threaded bushing 58 on standard 47.

W'hen handle 56 is manipulated, intermediate member 48 will slide on standard 47 by reason of bolts 49 and slots 54 and this will cause bolts 53 to act on slots 52 thus turning bearing brackets 51 on pivot 50. This, in turn, will cause shaft 17 to move I obliquely with respect to its axis as indicated by the dotted lines in Fig. 2 and will cause bearing bracket 51 of swivel bearing 18 to turn on its pivot 50.

In Figs. 10 to 14 is shown a modified form of theinvention. Here shaft 17 of the web roll 16 is mounted in two swivel bearings like 18 and 19 (18 only being shown) actuated by rack 25 and pinion 26 as before described. Owing to the extension of shaft 21 an additional bearing 59, in which the shaft slides, is rovided. Mounted at the lower end of sli e 24 is a bushing 60 carrying a shaft 61 having a bell crank 62 one arm of which is connected to one end of brake band 39 and the other end of which is connected by rods 63 to the other end of said brake band. The upper arm of bell crank 62 is bifurcated and is connected to rod 64. Connected to bell crank 62 is an arm 65 carrying weight 66 that tends normally to swing to the right and to release brake band on drum. When rod 64 is pulled to the left in Fig. 10 the brake band is tightened thus'retarding rotation of shafts 21 and 17. When shaft 27 is turned slide 24 will be moved carrying with it shafts 21 and 17 and bushing 60 carrying a rockshaft 61 so that the brake moves as a unit with the mill roll and control shafts.

Any suitable means may be used to actuate rod 64, but in the present instance the following means are used. 67 is a bell crank mounted on stud 68 in framework 69. One arm of this bell crank is connected to rod 64 and the other arm is bolted to lever 70 carrying foot pedal 71. Carried by lever 70 is a pawl 72 engaging sidewise with an upright rack 73 on framework 69. When it is desired to pull rod 64 to the left in Fig. 10, the operator steps on the pedal until it occupies the position shown in Fig. 10 and in full lines in Fig. 13, the pedal being given, if desired, a slight sidewise movement to permit pawl 72 to engage rack 73 thus retaining the brake band in taut condition. To release the parts, the operator kicks the pedal downwardly and sideways and weight 66 will then release brake band and move pedal and pawl upwardly into the dotted line position indicated in Fig. 13.

The specific form of the invention shown in Figs. 10 to 14 inclusive is not claimed herein but forms the subiect matter of a separate application filed June 1, 1923, Ser. NO. 642,755.

We claim:

1. The combination with a machine for acting on a web of flexible material, said machine including a roll, of a mill roll stand comprising: a web roll shaft, a control shaft arranged end to end, a flexible connection between the two shafts, means for adjusting the control shaft, and thereby the web roll shaft, lengthwise of its axis to bring the web into register with the roll of the machine, and means for adjusting the web roll shaft, independently of the control shaft, obliquely with respect to its axis to bring it parallel with the roll of said machine.

2. The combination with a machine for acting on a web of flexible material, said machine including a roll, of a mill roll stand com rising: a web roll shaft, a, control sha arranged end to end, a flexible connection between the two shafts, means for adjustin the control shaft, and thereby the web rol shaft, lengthwise. of its axis to bring the web into register with the roll of the machine, means for adjusting the web roll shaft, independently of the control shaft, obliquel with respect to its axis to bring it paral el with the roll of said machine, and a brake drum to retard rotation of the control and web roll shafts adjustable lengthwise with said control shaft.

' 3. A mill roll stand comprising: a control shaft, means for moving said control shaft lengthwise of its axis, a pair of swivel bearings located at the end of said control shaft,

a web roll shaft slidably and rotatably supported in said bearings, and a flexible drivin connection between the control and web r0 1 shafts.

4. A mill roll stand comprising: a control shaft, a brake drum to retard rotation of the control shaft, means for moving said control shaft and brake drum as a unit in I a direction lengthwise of the axis of the shaft, 9. web roll shaft 'slidably and rotatably supported in bearings at the end of said control shaft, and means for coupling and uncoupling the two shafts.

' 6. A stationary bearing having guides, a sliding member, having a downwardly projecting portion, sliding in said guides, a brake drum shaft mounted in said downwardly projecting portion, a control. shaft mounted in said sliding member above the brake drum shaft, transmission means between the two shafts, a brake band surrounding said brake drum, means, connected to the free ends of the brake band, supported from the sliding member, and actuating means for said brake band.

7. A stationary bearing having guides, a sliding member, having a downwardly pro jecting portion, sliding in said brake drum shaft mounted in sand downwardly projecting portion, a control shaft mounted in said sliding member above the brake drum shaft, transmission means between the two shafts, a brake band su1 rounding said brake drum, a support, above,

stem passes, and means for preventing hwise movement of the threaded stem. igned at the borough of Brooklyn, in the county of Kings, city and State of New York, this 23 day of August, 1920.

JAMES A. CAMERON. GUSTAF BIRGE BIRCH.

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